Finding the Fourth Proportional to 811,275.51, 1,216,372.70 and 446,708.79
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Solution
The fourth proportional to 811,275.51, 1,216,372.70 and 446,708.79 is: 669,765.53
Step by Step Solution
- Step 1: Write the proportion equation
811,275.51 : 1,216,372.70 = 446,708.79 : x - Step 2: Convert to fraction form
811,275.51/1,216,372.70 = 446,708.79/x - Step 3: Cross multiply
811,275.51x = 1,216,372.70 × 446,708.79 - Step 4: Simplify right side
811,275.51x = 543,364,375,610.07 - Step 5: Solve for x
x = 543,364,375,610.07/811,275.51 - Step 6: Final answer
x = 669,765.53
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.